Master Niu thought for a while, "No, I'm still not at ease, I'm not worried about your father-in-law, I'm really not worried about those Fanren craftsmen, or you look at this, these two Xiyi cannons can be placed in the firearms factory for the craftsmen to refer to, but I have to send someone to watch, the head of the military department is quite accomplished in this firearm, I will let him look at this Xiyi cannon, you don't think it can be done!" Anyway, where the Xiyi cannon is, the others are there!! ”

Qian Lianghu looked at the other party and knew that the other party was a little hairy, so he said slowly: "Lord Niu, your pattern is really not big enough, this matter is so decided, and I won't regret it!" ”

"It's decided!" The cow chief replied categorically.

"Nacheng, wait for my letter to pick up these two Xiyi cannons!" Qian Lianghu stood up, still muttering: "Hey, I'm just working hard, I've worked hard for others, and I'm not trusted by others, I knew this, I really might as well not do much about it!" ”

The cow master was on the side, smiling dryly and sending off the guests, but he no longer refused to accept Qian Lianghu's words, what are you kidding, he has already sent five thousand taels of silver out, and then he is afraid that he will have to have a few thousand taels to stop, and he hasn't seen anything yet, so he just sprinkled the silver, this silver is not his own Niu master's.

When Qian Lianghu slowly shook out, the Niu master slowly did it, and instructed the people around him: "Go and ask the horse master of the military department to come, just say that I have something important to discuss with him!" ”

Outside the door, Qian Lianghu took out the silver ticket in his arms, counted it carefully, and then comfortably put the silver ticket into his arms!

Nima, it's not easy, it's been a few months, and I finally saw the silver coming in, thinking about this kind of thing that has done things well again, and there is money coming in, if there is a thing every day, how good it would be!!

The two Xiyi cannons were quietly transported ashore at night, and the people of the Jinyi Guard and the people of the City Ship Division stared at it, and there was no mistake in the whole transaction process, and the Siamese ship put down the cannons, took the money and left, and the end was extremely neat, and even the cattle owner wanted to be close to these people, but he couldn't find a chance.

When Gao Han got the news, the two cannons had already been transported to the firearms factory, and Gao Han still had a great desire to visit this authentic Xiyi cannon.

But when he arrived at the firearms factory, he was immediately a little disappointed, what Xiyi cannon is, it is nothing more than a larger musket, and the barrel of the musket is magnified so many tens of times, it is almost the same, what bracket he imagined or anything, there is nothing, it is just a huge iron barrel.

Actually, this can't be blamed on Gao Han's lack of knowledge, the authentic Xiyi cannon was originally like this, he used the impression of his previous life in his memory to confirm the cannon of this era, of course, disappointment is inevitable.

Probably because the parents who saw him seemed a little disappointed, Byrne, the leader of the craftsmen of the firearms factory, gave Gao Han a good explanation of the development of this artillery.

At the very beginning, the production of this metal cannon is really not much different from the barrel production of muskets, that is, it is made of iron ingots rolled into iron sheets, and then wrapped in iron rods and forged, of course, this is the lowest practice, the artillery produced by this method, one is too slow, too time-consuming and manual, and the other one, the quality of this artillery is outrageously low, either it collapses after a few hits, or it explodes directly when it is ignited.

Therefore, after quickly abandoning this low-level production method, the craftsmen transferred the production of this cannon barrel from forging to casting, first making a model with clay, and then pouring the molten iron down the model, waiting for the molten iron to cool down, removing the clay, and a molded cannon barrel came out.

This casting method seems to be very simple, but the quality of the cast barrel often depends on the level of casting technology, and, even more pitiful, even if a barrel is cast, it does not mean that the barrel can be used directly. It also has to go through a lot of means of testing.

For example, an experienced craftsman will use a tool to gently tap all parts of the barrel to tell from the sound that the metal around the barrel is uneven.

For example, the cast cannon barrel will be filled with water to test whether there are cracks in the cannon body, once there are cracks, then, the cast cannon barrel is a waste product, for the craftsmen to write, the cracks on the cannon body, and the explosion of the bore is a meaning.

Even if there is no problem with all this, it only means that the gun body is qualified, and there are a series of things to be done in the back, such as at the rear end of the gun, the fuse port must be played, and a series of repeated work such as manual grinding, polishing, and calibration must be carried out inside the gun barrel.

It is not until all the work is completed that it is possible to test the gun, and the test gun is not necessarily successful, and only after all the links and the test gun is successful, the gun can be put into normal use.

Therefore, don't look at such a cannon barrel, it really can't be underestimated, being able to make such a cannon is already the top military technology in this era.

Bourne did not cast the cannon himself, but, in his career as a craftsman, he was fortunate enough to participate in the casting of a cannon, that was when he was an apprentice, under the leadership of his own master, the cast cannon was polished, an apprentice like him, it was already rare to have this opportunity, although in that participation, he did not obtain any substantial production process, but this has become a huge capital in his craftsman career, all the people involved in the casting of cannons, can't they still make a few muskets?

Now that there is fine steel and physical objects to refer to, how to forge a good cannon is the most exciting challenge of Bourne's craftsman's career.

As for the improvement of the production of muskets, he didn't pay attention to it at all, this kind of thing, let his nephew Chance do it, anyway, his own craft, Chance has almost learned, and he has to let him exercise alone.

Two cannons, each weighing about three thousand catties, Bourne didn't care about it, anyway, the materials needed were from the owner, he only needed to study how to cast a qualified cannon body, but this amount made Gao Han feel a lot of pain.

About 3,000 catties of steel, that at least four or five thousand catties of iron can be smelted, so calculated, this wants to cast two cannons, at least 10,000 catties of iron, the worst thing is that even so, there is no guarantee that the casting will be successful, even if the casting is not successful can be returned to the furnace, then the loss is enough to make people distressed for half a day!

This is really a money-burning thing!!

Gao Han shook his head and couldn't help but smile bitterly, fortunately this time there was the unjust head of the household department to pay, otherwise even if he had this heart, he might not have this strength, unless he put his mind sideways and became a corrupt official who stretched out his hands everywhere, otherwise, don't even think about this kind of thing.

Ma Chief, the head of the military department, now directly took off his official uniform, he came to the firearms factory to take care of the two guns they purchased according to the agreement, but, looking at his posture, dressed as a craftsman, this is used as a craftsman, while muttering to Bourne, while still writing and drawing, recording data, it seems that he intends to participate in this matter throughout the process.

read2();